List of Articles نانو اکسید مس

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  1 - Determination of kinetic and thermodynamic parameters of heavy metal removal from aqueous solution by nano zero valent iron (NZVI) and nano copper oxide (nCuO)
  رقیه حمزه نژاد ابراهیم سپهر عباس صمدی میرحسن رسولی صدقیانی حبیب خداوردیلو
  In order to study the equilibrium, kinetic and thermodynamic of cadmium (Cd), lead (Pb), copper (Cu) and zinc (Zn) adsorption by nano zero valent iron (nZVI) and nano copper oxide (nCuO), batch experiments carried out with different initial concentration of the metals a More

  In order to study the equilibrium, kinetic and thermodynamic of cadmium (Cd), lead (Pb), copper (Cu) and zinc (Zn) adsorption by nano zero valent iron (nZVI) and nano copper oxide (nCuO), batch experiments carried out with different initial concentration of the metals at different time and temperature. The results showed that the removal efficiency and adsorption capacity of nano particlesincreased with increasing initial concentration. Among adsorption kinetic models, pseudo second order model was better fitted for experimental data (R2=0.99-1.00). The adsorption data were well fitted with Langmuir model compared to Freundlich, Temkin and Dubinin-Radushkevich models. Maximum mono layer adsorption (qmax) of Cd, Pb, Cu and Zn were obtained 218, 239, 242 and 215 mg g-1 for nano zero valent iron and 90, 176, 100 and 76 for nano copper oxide respectively. The sorption energy parameter (E) of Dubinin-Radushkevich isotherm and Gibbs free energy change (ΔG) indicated that the metals adsorption processes were physical and spontaneous. The separation factor of Langmuir (RL) indicated that the sorption reactions of metals by the nano particles is favorable (RL=0.03-0.50). Manuscript profile
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  2 - Sub-Lethal Effects of Exposure to Copper Oxide Nanoparticles on Growth Indices and Body Biochemical Composition of Common Carp (Cyprinus Carpio)
  hasan sahraei Seyyed Abbas Hoseini Seyyed Aliakbar Hedayati Rasoul Ghorbani
  10.22034/jest.2021.14246.2288
  Background and Objective: Due to the increasing use of nanoparticles in human activities, as well as its role in reducing the adverse effects of heavy metals on living organisms, at this study the effects of sub-lethal concentrations of copper nanoparticles were discuss More

  Background and Objective: Due to the increasing use of nanoparticles in human activities, as well as its role in reducing the adverse effects of heavy metals on living organisms, at this study the effects of sub-lethal concentrations of copper nanoparticles were discussed on growth factors and biochemical composition carcass of common carp. Method: 82 carp with an average weight of 42 ± 2 g was prepared and after adaptation for the laboratory condition, were exposed at 42 days at three treatments (10, 40, 80 ppm) and three replicates respectively, also a control group were prepared with three replications under the affect of sub-lethal concentrations of copper oxide nanoparticles. Findings: Analysis of growth indices showed that all growth indices had significantly different (P<0/05) with metal treatments in compared to the control group. So the control group had the highest average body weight, percent of body weight, SGR rate, and feed conversion efficiency with averaging 2.93. The lowest specific growth rate and the highest rate of conversion were related to the treatment number three (80 ppm), respectively. The amount of ash, fat, protein and maximum moisture was observed at the control group. The highest percentage of protein and fat was at treatment (3) and concentration of 80 milligrams per litre of copper oxide nanoparticles that in this regard showed significant differences (P<0.05) with the control group. Discussion and Conclusion: The results indicate that the presence of copper oxide nanoparticles in aquatic ecosystems have negative effects on growth and biochemical composition of fish carcasses even at sub-lethal concentrations, that by increasing the concentration of the nanoparticles in aquatic ecosystems, the influence of these effects will become clearer. Manuscript profile
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  3 - جذب رنگ‌های اریتروزین و کارموزین قرمز از محلول‌های آبی با جاذب نانو اکسید مس: بررسی سینتتیکی و ترمودینامیکی
  محمد کاظم محمدی
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